Window-fastener.



G. W. STEIN.

WINDOW FASTENEIL AIPLIOATION FILED JAN.8, 1910.

Patented July 18, 1911.

I INVENTOH 650m W, STE/Al WITNESSES:

ATTORNEYS COLUMBIA PMNOGRAPH cg WASHINGTON, D. C.

UNITED STATES PATENT OFFICE.

GEORGE W. STEIN, OF CHICAGO, ILLINOIS.

WINDOW-FASTENER.

To all whom it may concern:

Be it known that I, GEORGE W. STEIN, a citizen of the United States, anda resident of Chicago, in the county of Cook and State of Illinois, havemade certain new and use ful Improvements in VVindow-Fasteners, of whichthe following is a specification.

My invention relates to means for fastening windows and it consists inthe combinations, constructions and arrangements herein described andclaimed.

An object of my invention is to provide a fastening device to be usedfor holding one sash in a fixed position with relation to the otherwhich may be readily adjusted to permit the free movement of eithersash.

Other objects and advantages will appear in the following specificationand the novel features of the device will be particularly pointed out inthe appended claims.

My invention is illustrated in the accompanying drawings forming part ofthis specification in which similar reference characters indicate likeparts in the several views and in which Figure 1 is a side view of aportion of a window equipped with my improved looking device. Fig. 2 isa section taken along the line 2--2 of Fig. 1, and Fig. 3 is a sectionalong the line 33 of Fig. 2.

In carrying out my invention I provide the upper sash 1 with strips 2,on the sides thereof, of the form shown in the drawings. A descriptionof one of these strips will suffice for both since they are both similarin form. They consist preferably of strips of metal, U-shaped in crosssection, as shown in Fig. 2, the sides of the U being provided with aseries of teeth 3. These strips are set into the frame so that the teethalone proj ect, as shown in Fig. 3, and they may be secured to the sashin any convenient manner such as by screws or nails 5.

To the top of the lower sash I secure a sliclable plate which I willdenote in general by P. This plate is provided with the slots 9 throughwhich the pins 9 carried by the sash, project. The plate P has a flange79 on one side to which are secured pivoted locking hooks 6 whose endsare arranged to extend through openings 79* in the plate P, and to enterregistering openings 8 in the lower sash 9 to hold the plate P in lockedposition. It will be noticed that this plate P is cut away at itscorners to permit Specification of Letters Patent.

Application filed January 8, 1910.

Patented July 18, 1911.

Serial No. 536,996.

I it to extend practically into contact with the glass 10, of the uppersash.

At each end of the plate P, I provide the locking members R whichconsist of an L shaped member 11, see Fig. 1-, having a horizontal armsecured to the plate P and the other arm extending upwardly. Hinged tothe horizontal portion of the member 11 is a member 12 which is arrangedto engage the teeth 3 to lock the parts in position. The member 12 isprovided with a central portion 12 which is bent backward as shown inFig. 3 and which constitutes a thumb-piece for manipulating the hingedmember 12. The member 12 is provided with shoulders 12 to engage theteeth 3.

From the foregoing description of the various parts of the device theoperation thereof may be readily understood.

When the window is not to be locked the members 12 may be pulled awayfrom the teeth 3 and the plate P may be retracted into the positionshown in dotted lines in Figs. 2 and 3. In this position either sash maybe moved at will in the ordinary manner. Now when it is desired to lockthe sash together in any relative position the upper sash may be placedin the desired position and the plate P is pushed inwardly until it isin contact with the glass 10 of the upper sash. The locking member 12may now be forced into engagement with the teeth 3 and the locking hooks6 may be turned so as to lock the plate to the lower sash in the mannershown in Fig. 1.

While I have shown the two sash members in a locked relation with thelower sash member of the upper frame in line with the upper sash memberof the lower frame, 2'. 6., with the window closed, it will beunderstood that the upper sash may be lowered or the lower sash may beraised and the locking member 12 may engage the teeth 3 to lock the sashin any position. The up wardly extending member of the L-shaped piece 11serves as a support for the member 12.

I claim:

1. In a window locking mechanism, a series of teeth adapted to becarried by an upper sash, and a locking device adapted to be carried bya lower sash, said locking device comprising a base portion, a hingedmember secured to said base and having its central portion bent backupon itself and provided With a shoulder on each side of said centralportion arranged to engage the teeth of the upper sash, and a portionextending upwardly from said base and serving as a brace for said hingedmember.

2. In a Window locking mechanism, a U- shaped metal strip having aseries of teeth on its edges adapted to be carried by an upper sash, anda locking device adapted to be carried by a lower sash comprising abase, a hinged member having a thumb piece at its central portion, andprovided With a shoulder on each side of said thumb piece, a portion ofsaid central portion being arranged to extend between the arms of saidU-shaped strip and said shoulders being arranged to engage the teeth onsaid U-shaped strip, and an upwardly extending portion serving as abrace for said hinged member.

GEORGE W. STEIN.

Witnesses F. J. QUIRK, MALAOHI JEFFRIES.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

